Structural tests of U.S. Air Force B-36 Peacemaker bomber aircraft at Wright Patterson Air Force Base in Dayton, Ohio. Interior of an office building as engineers and civilian personnel look at charts of the B-36 aircraft. Man points at the charts and blueprints of B-36 structure. Exteriors of structural test building, Area 'B', Wright Patterson AFB. A B-36 aircraft taxis on airfield. Exterior of test hangar with test personnel around the B-36. Interiors as B-36 undergoes various stress and strain tests. Wing section of B-36 undergoes various tests. Man at hydraulic control panel. Tail tests being carried out on B-36. Personnel at an instrument panel.

United States Army Air Corps exercises on Wright-Patterson Air Force Base in Dayton, Ohio. Engines of the United States Army Air Corps Lockheed XC-35 aircraft being started. Air tight cabin of the aircraft. Crew get ready for flight. Crew boards the aircraft. An airman closes door of the aircraft. Aircraft taxis on a field and takes off. Aircraft in flight over the Wright-Patterson Air Force Base.

Structural tests of U.S. Air Force B-36 Peacemaker bomber aircraft at Wright Patterson Air Force Base in Dayton, Ohio. Various stations of B-36 with the stress and ruptures of the parts. Parts of the aircraft after conducting the landing gear tests. Wing section of B-36. Weights on wing of B-36, and showing the moment that a rupture occurs in the wing section. B-36 takes off from a runway.

Technicians and members in the laboratories and offices of WADC, Dayton, Ohio, United States. Aerial view of approach to Wright Air Development Center (Wright-Patterson Air Force Base), includuing view of Wright Memorial on Wright Brothers Hill. Low altituide aerial view of Aero Medical Laboratory, wind tunnel area, static structural tent building and the main flight line area. Hand holding book entitled, "Wright Air Development Center" (WADC). Hands open book-on first page is: "Mission of WADC". Interior, laboratory research building at Massachusetts Institute of Technology (MIT), airmen push rack down test area and into vault. Exterior view in Cambridge Massachusetts of the MIT Great Dome and Building 10 seen from Killian Court, with text engraving seen on building frieze: Massachusetts Institute of Technology. Two members of the Institute walk down steps of Building 10. Two technicians working in office building. Supersonic propeller undergoing test on large test stand. Superimposed over this picture are the words: Research And Development. Supersonic propeller undergoing tests. Two technicians at control panel of the test stand. USAF B-50 Superfortress aircraft in flight. Engine starting on B-50 in flight-plane equipped with special deicing equipment. B-50 in flight showing special test and research instruments and operator.

Ominous clouds in sky during Super Outbreak of tornadoes in April 1974 that hit regions in many states, including Illinois, Indiana, Michigan, Ohio, Kentucky, Tennessee, Alabama, Mississippi, Georgia, North Carolina, Virginia, West Virginia, and New York; and the Canadian province of Ontario. Xenia Ohio city manager Bob Stewart seen talking to his wife. A man checks storm on radar during a tornado in United States. A man rolls a machine to other room. During recording, a man shows areas that come in tornado's range. Sheriff dispatcher gives warning to all police and sheriff personnel about the sighted tornado in Montgomery County. Dick Burroughs on phone at Miami Valley Disaster Services in Dayton Ohio. A freigh train entering Xenia, Ohio just as tornado, scene via a student's 8mm camera comes into view and bears down on Xenia Ohio. Tornado hits the city of Xenia. Reenactment as city manager's wife takes call from him warning of tornado and she heads for basement cover. U.S. Air Force dispatches emergency medical convoy from grounds of base hospital at Wright Patterson Field. View of medical staff from the base mobilizing with ambulances and heavy construction battalion. Box 21, an emergency group responds to siren. People gather and discuss their plan include Military Personnel. A man explains situation. Rescuers save victims from tornado and take away dead bodies to temporary morgues.

Structural tests of U.S. Air Force B-36 Peacemaker bomber aircraft at Wright Patterson Air Force Base, Dayton. Interior of structural test building as B-36 fuselage undergoes tests. B-36 fuselage being lifted off the ground. Interiors of plane with structural changes being made to fuselage section. Break in crew compartment of fuselage section after tests. Test personnel around B-36 which is being lifted off ground. Fuselage section with stringers.